Stapling machine



Sept. 29, 1959 1.. B. COOK I STAPLING MACHINE 3 Sheets-Sheet 1 Filed Oct. 11, 1957 INVENTOR. LYMAN B COOK FIG.

(ATTORNEYS Sept. 29, 1959 1.. B. COOK 2,905,941

STAPLING MACHINE Filed Oct. 11, 1957 s Sheets-Sheet 2 FIG. 2.

INVENTOR.

LYMAN B. COOK ATTORNEYS Sept. 29, 1959 L. B. cooK STAPLING MACHINE 3 Sheets-Sheet 3 Filed Oct. 11, 1957 FIG. 5.

6 d w 2 8 .h M I INVENTOR. LYMAN COOK BYB a E FIG. 4.

ATTORNEYS United States Patent STAPLING MACHINE Lyman B. Cook, Haddonfield, N.I., assignor to Acme gtapl'e Company, Camden, N.J., a corporation of New ersey ApplicatiomOctoberll, 1957, Serial No. 689,694

3' Claims. (Cl. 1-3) This, invention relates to a stapling machine. in. accordance with this invention, there is provided a stapling machine which is particularly advantageous for use where an obstruction would prevent the use of an ordinary stapling machine. The stapling machine in accordance with this invention has utility, for example, for stapling canvas to the frame of a hamper of the type having a canvas supporting frame at the top thereof.

The principal feature of the stapling machine in accordance with this invention is a moveable anvil which can be moved outwardly away from the staple driver to permit the clearance of an obstruction and then rigidly supported in a proper position for the clinching of a staple.

Thus it will be apparent that the main object of this invention is to provide a stapling machine having a moveable anvil for the clearance of obstructions preparatory to the driving of a staple, the anvil being rigidly supported during the driving and clinching of a staple. This and other objects of this invention will become apparent on reading the following description in conjunction with the drawings in which:

Figure 1 is a side elevation of a stapling machine in accordance with this invention;

Figure 2 is a front elevation of the stapling machine in Figure 1;

Figure 3 is a rear elevation of the stapling machine in Figure 1;

Figure 4 is a side elevation of a modified stapling machine in accordance with this invention; and

Figure 5 is a section taken on the plane indicated by the line 55 in Figure 4.

As shown in Figures 1 through 3, a stapling machine 2 in accordance with this invention has a frame generally indicated at 4. A staple magazine indicated generally at 6 is formed by frame member 8 together With staple channel member 10. A staple pusher 12 having secured thereto a ring 14 is attached to a coil spring member 16 mounted in frame member 8 on an axis indicated at 18.

Staples 20 are forced downwardly by pusher member 12, the lowermost staple resting on ledges 22 and 24 of bars 26 and 28. A staple driver indicated at 32 has its lower surface resting on ledges 22 and 24 and is adapted to engage a staple 20 on said ledges.

Staple driver 32 is attached to a ram indicated at 34. Ram 34 is mounted on supporting frame member 36 which, in turn, is secured to frame member 30. Ram 34 is connected to an air line 38 which, in turn, is connected to a control valve 40 supplied by an air line shown in part at 42. Valve 40 is controlled by a control lever 44 which is pivoted to valve 40 at 46 and has a control handle 48. As viewed in Figure 3, the movement of lever 44 to the left urges valve control member 50 to the left to open the valve 40 and supply air to ram 34. Valve member 50 is spring biased to the right as shown in Figure 3 by a spring which is not shown. When air is admitted to ram 34 by the operation of valve 48, this forces staple driver 32 to the right as viewed in Figure 1 and re- Patented Sept. 29, 1959 2. sults in driving a staple to the right as; viewedjin Figure 1.

The structure as described above isconventional and, generallyv speaking, well known in the stapling machine art. The novel aspects of the stapling machine of this invention will now'be described.

As shown particularly inFigures 1 andZ', an anvil 60 is secured to the lower end of lever 62. Lever 62, in turn, is pivoted. at 64 between the yoke 66 of frame-member 68'. The upper end of lever 62 is provided with a cam surface.70' which, as shown in' Figure 1, is engaged by the. outer end of a lever 72. Lever 72, is pivoted between yoke 66 of frame member 68 at 74'. Lever 72 is also pivotally connected; to levers 7'6, 76, at 78, 78. Levers 76' extend upwardly and are pivoted at 80 to an operating lever. 82'. Lever 82 is pivotally secured to yoke 66' at 84' and is provided with an operating handle 86 at its upper end. A mating handle member 88 is provided to facilitate moving handle 86 to a position to lock anvil 60 in the operating position. To facilitate handling the machine 2, a supporting handle 90 is secured to member 92 which, in turn, is secured to ram 34 and frame member 8.

With respect to the operation of the above described machine, it will be noted that Figures 1 through 3 show the stapling machine 2 after a cycle of operation, a staple 20 having been driven and set. In order to drive another staple, for example, in a position remote from the present position in which machine is found, handle 86 is moved to the right as viewed in Figure 1 away from handle 88. This action forces links 76 and 72 downwardly which, in turn, carries the outer end of link 72 clear of the cam surface 70 of lever 62. This permits anvil 60 to be moved away from frame member 8 by the pivoting of lever 60 about pivot point '64. This is generally accomplished by the movement of frame 4 slightly to the left as viewed in Figure 1. The machine 2 can now be raised clear of canvas supporting rod and the surrounding canvas 102 of a hamper indicated generally at 104. The machine 2 may now be moved around and lowered at a different point over rod 100 and the surrounding canvas 102 Without any difficulty in clearing these obstructions. When lowered to the proper position for stapling as determined by stop member 106, which is secured to frame '4, lever 82, by means of handle 86, is moved to the left towards handle *88 causing the upward movement of levers 76 and 72. The outer surface of lever 72 engages cam surface 70 and acts to cam lever 62 to bring anvil 60 towards frame member 8 and into position for setting a staple.

When handle members 86 and 88 are substantially to gether, link 72 is substantially on dead center with respect to lever 62. This effectively locks lever 62 and hence anvil 60 in the operating position. The staple driver 32 can now be operated as previously described to drive a staple through canvas .102 and against anvil 60 which effectively sets the staple.

An alternative hand-operated stapling machine 200 is shown in Figure 4. The machine 200 is identical with the machine 2 with the exception of the mechanism for hand-operating the driver 32. Driver 32 is pivotally connected to a link 202 which in turn is pivotally secured to an operating lever 204. Lever 204 is pivotally connected at 206 to a frame member 208 which is substituted for frame member 30 of machine 2. The staple driver 32, as viewed in Figure 4, is actuated to drive a staple by moving the handle to the right and to retract it to receive another staple by moving operating lever 204 to the left.

Anvil 60 is shown in greater detail in Figure 5. As shown in Figure 5, anvil 60 has dished portions 210 and 212 for setting a staple driven against the anvil.

It is not desired to be limited except as set forth in the following claims.

What is claimed is:

1. In a stapling machine having a frame, staple supplying means and a staple driver, the combination therewith of a lever pivoted tOlhCffl'Ell'IlB, an anvil adapted to cooperate with the driver and 'se'cured to said lever and manually actuated means to cam said lever'to place the anvil in an operating position with respect'to 'the'driver, said manually actuated means locking the anvil in the operating position. v

2. In a stapling machine having a frame, staple fsupplying means and a staple driver, the combination therewith of a lever pivoted to the frame and provided with a cam surface, an anvil adapted to cooperate with the driver and secured to said lever, a camrnin'g' lever adapted to engage said cam surface and manually activated means to move said camming lever relative to said first mentioned lever to place said anvil in an operating position with respect to the driver and lock said first mentioned lever against movement with respect to the frame.

3. In a stapling machine having a frame, staple supplying means and a staple driver, the combination therewith of a lever pivoted to the frame and provided with a cam surface on one side of the lever pivot point, an anvil adapted to cooperate with the driver and secured to said lever on the opposite side of the lever pivot from said cam surface, a camming lever pivotally secured to said frame and adapted to engage said cam surface and manually actuated means to move said camming lever to place said anvil in an operating position with respect to thedriver with said camming lever substantially perpendicular to the cam surface.

References Cited in the file of this patent UNITED STATES PATENTS 1,978,983 Bauer Oct. 30, 1934 2,232,016 Walker Feb. 18, 1941 2,327,368 Olson Aug. 24, 1943 

